Ceiling exhaust fans are commonly used in residential and commercial properties for the convenient extraction of moisture or unpleasant odours. They operate by drawing air upwards through the ceiling and can be vented into the roof cavity or exhausted externally. On the other hand, inline exhaust fans are not as widely recognized as ceiling exhaust fans.
The key distinction lies in the installation of inline exhaust fans directly within the ceiling cavity, typically mounted between lengths of ducting. This type of exhaust fan is particularly popular in areas where there is limited clearance or no available roof space for a ceiling fan. One of the advantages of an inline ceiling fan is its ability to reduce noise due to its placement within the roof cavity.
Inline exhaust fans are suitable for a wide range of applications, including residential, commercial, and industrial settings. They are available in three different types of motors:
Axial Motors: These consist of a single propeller and are ideal for installation in areas with short lengths of ducting, minimal bends, and no branches. They are capable of moving a large volume of air at very low pressure.
Centrifugal Motors: These motors are suitable for locations where longer lengths of ducting are present, potentially with bends and branches. They extract a large amount of air against high pressure while maintaining their capacity over a long duct run.
Mixflow Motors: As the name suggests, this model combines features of both axial and centrifugal motors, making it unique. It is designed for installation in longer ducting systems that include bends and branches.